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| 1 | Backstepping design of missile guidance and control based on adaptive fuzzy sliding mode control显示文摘This paper presents an integrated missile guidance and control law based on adaptive fuzzy sliding mode control. The integrated model is formulated as a block-strict-feedback nonlinear system, in which modeling errors, unmodeled nonlinearities, target maneuvers, etc. are viewed as unknown uncertainties. The adaptive nonlinear control law is designed based on backstepping and sliding mode control techniques. An adaptive fuzzy system is adopted to approximate the coupling nonlinear functions of the system, and for the uncertainties, we utilize an online-adaptive control law to estimate the unknown parameters. The stability analysis of the closed-loop system is also conducted. Simulation results show that, with the application of the adaptive fuzzy sliding mode control, small miss distances and smooth missile trajectories are achieved, and the system is robust against system uncertainties and external disturbances. | Ran Maopeng Wang Qing Hou Delong Dong Chaoyang | 2014 | Chinese Journal of Aeronautics2014，27，3： | 32 |
| 2 | Output Feedback Dynamic Surface Controller Design for Airbreathing Hypersonic Flight Vehicle显示文摘This paper addresses issues related to nonlinear robust output feedback controller design for a nonlinear model of airbreathing hypersonic vehicle. The control objective is to realize robust tracking of velocity and altitude in the presence of immeasurable states, uncertainties and varying flight conditions.A novel reduced order fuzzy observer is proposed to estimate the immeasurable states. Based on the information of observer and the measured states, a new robust output feedback controller combining dynamic surface theory and fuzzy logic system is proposed for airbreathing hypersonic vehicle. The closedloop system is proved to be semi-globally uniformly ultimately bounded(SUUB), and the tracking error can be made small enough by choosing proper gains of the controller, filter and observer. Simulation results from the full nonlinear vehicle model illustrate the effectiveness and good performance of the proposed control scheme. | Delong Hou Qing Wang Chaoyang Dong | 2015 | IEEE/CAA Journal of Automatica Sinica2015，2，2： | 4 |
| 3 | Epoxidized methyl ricinoleate bio-plasticizer with a pendant acetate ester for PVC artificial material:circumventing existing limit on achievable migration resistance显示文摘Processing polyvinyl chloride(PVC)artificial material requires plasticizer that softens the PVC coating.Currently,utilizing unsaturated fatty acid methyl esters to obtain epoxidized fatty acid methyl ester(EFAME)bio-plasticizers constitutes an environmentally responsible solution to substitute conventional ortho-phthalates that are endocrine disruptors or probable carcinogens.However,commercial EFAMEs,even with the highest epoxy value(ca.5.5-5.8%)so far,still suffer from fast leaching from the PVC matrix,burdening the environment and shortening lifespan of the artificial material.Here,we report a proof-of-principle demonstration of a new strategy to obtain migration-resistant EFAME that harnesses the midchain hydroxyl of methyl ricinoleate and covalently attachment of a pendant acetate ester.Despite a low epoxy value(3.0%),the engineered bio-plasticizer displays significantly suppressed migration in multiple scenarios compared with one conventional EFAME with much higher epoxy value(5.8%).Circumventing the limit confronting previous strategy that highlights the sole contribution of epoxy value to achievable migration resistance,the rationale herein may provide guidance for designing new EFAMEs with comparable performance to ortho-phthalates,thus bringing the old and oft-maligned PVC artificial material industry one step closer to sustainability. | Siyu Pan Delong Hou Gaofu Yang Qiuping Xie Sunxian Yan Qi Zeng Zhonghui Wang Yi Chen Haojun Fan | 2019 | Journal of Leather Science and Engineering2019，1，1： | 3 |
| 4 | Influence of the replacement of alkoxyl with alkylthienyl on photovoltaic properties of two small molecule donors for organic solar cells显示文摘Two benzo[1,2-b:4,5-b￠]dithiophene(BDT)-based small molecule(SM) donor materials with identical conjugated backbones but different substitution groups, named as DRTB-O and DRTB-T, were well explored to demonstrate the influence of the replacement of alkoxy with alkylthienyl on their photovoltaic properties in fullerene-based and fullerene-free organic solar cells(OSCs). The study shows that the two SM donors possess similar absorption spectra and energy levels but different crystalline structures in solid films. The carrier transport property and phase separation morphologies of the blend films have also been fully investigated.By employing PC71 BM as the acceptor, the power conversion efficiency(PCE) of DRTB-O:PC71BM and DRTB-T:PC71BM based devices were 4.91% and 7.08%, respectively. However, by blending with IDIC, the two SM donors exhibited distinctly different photovoltaic properties in fullerene-free OSCs, and the PCE of DRTB-O:IDIC and DRTB-T:IDIC based devices were 0.15% and9.06%, respectively. These results indicate that the replacement of alkoxyl with alkylthienyl in designing SM donor materials plays an important role in the application of fullerene-free OSCs. | Shaoqing Zhang Liyan Yang Delong Liu Chang He Jianqi Zhang Yun Zhang Jianhui Hou | 2017 | Science China Chemistry2017，60，10： | 2 |
| 5 | Prediction of Deformation and Footprint of High-speed Rotating Radial Tires显示文摘In this research,the tire deformations due to rotation are divided into three parts:tread,belt and carcass.Tread deformation is obtained by using a rotating hollow cylinder model,belt expansion is calculated according to the laminated composite shell theory,and a formula of dynamic equilibrium profile is built to investigate carcass deformation.Moreover,a simple method is used to predict the footprint changes caused by tire deformation.Results show that a large deformation is occurring at tire shoulder,a smaller one at tread centre,and the shoulder deformations are mostly caused by carcass.Length of footprint side edges increase with tire rolling speed increasing.The predicted tread,belt,carcass deformations and footprint changes are in good agreement with finite element analysis results.The proposed method and the results will offer a helpful guidance to tire and vehicle engineers. | CUI Zhibo CHAI Delong LYU Jiafeng HU Kai ZHANG Chunsheng HOU Dandan WANG Youshan | 2020 | 橡胶工业2020，67，5： | 2 |
| 6 | Consensus of leader-followers system of multi-missile with time-delays and switching topologies显示文摘 | Xuejiao Sun Rui Zhou Delong Hou Jiang Wu | 2014 | Optik - International Journal for Light and Electron Optics2014，，3： | 1 |
| 7 | A light-activatable antibiotic with high activation efficiency and uncompromised bactericidal potency in the activated state显示文摘Achieving activatable antibiotics represents one promising solution to tackle the occurrence of side effects,one major issue now plaguing antibiotic usage in collagen-based biomaterials.Despite considerable effort,however,rationale design of activatable antibiotics that display high activation efficiency and uncompromised bactericidal potency in the activated state remains difficult.Here,we demonstrate a design principle that helps to address this challenge.This strategy differs from previous attempts by underscoring photolytic removal of a functionality directly conjugated to the pharmacophore of an antibiotic,enabling not only an activation efficiency significantly improved beyond previous light-activatable antibiotics,but also bactericidal activity in the activated state as potent as the parent drug. | Delong Hou Rui Wang Zhonghui Wang Gaofu Yang Zhou Xu Qi Zeng Yi Chen | 2021 | Journal of Leather Science and Engineering2021，3，1： | 1 |
| 8 | Microphysical characteristics of precipitating cumulus cloud based on airborne Ka-band cloud radar and droplet measurements显示文摘在积云中,大多数云粒子的直径在7到10微米之间,而在层云中,大多数云粒子的直径不超过2微米.云滴有效半径与云中行星边界层(PBL)及PBL上层的气溶胶数浓度(Na)呈负相关.在1500米以上的高液态水含量区域,云滴浓度(Nc)变化不大,Na含量降低.高雷达反射率对应于大的FCDP云粒子浓度和小的气溶胶粒子浓度.积云中的强上升气流增加了云滴的峰值半径和数浓度,拓宽了云滴谱;较低的空气温度有利于粒子的凝结增长,并产生较大的液滴. | Lei Wei Mengyu Huang Rong Zhang Yuhuan Lü Tuanjie Hou Hengchi Lei Delong Zhao Wei Zhou Yuan Fu | 2022 | Atmospheric and Oceanic Science Letters2022，15，2： | 1 |
| 9 | AGET ATRP of acrylonitrile with ionic liquids as reaction medium without any additional ligand显示文摘 | Chen Hou Liang Ying Liu Delong | 2010 | Mater Sci Eng C2010，30，4： | 1 |
| 10 | SET‐LRP of acrylonitrile catalyzed by tin powder显示文摘 | Zhihai Hao Hou Chen Delong Liu Lijun Fan | 2012 | Chem2012，，24： | 1 |
| 11 | Output-feedback based partial integrated missile guidance and control law design显示文摘An output-feedback based partial integrated guidance and control(IGC) law for missile interceptor is proposed with the smooth finite time convergence property. Firstly, a novel outputfeedback based smooth sliding mode control is proposed for a class of nonlinear systems in the presence of immeasurable state and disturbance. The finite time convergence property of this control scheme is proved based on the Lyapunov stability and homogeneous principle. Then, the proposed control method is applied to the design of partial IGC law. A kind of scaling methods is also developed to reach the rapid convergence of the system. An important dominance of this control scheme is the smooth characteristic,which may result in chattering free convergence. The simulation results indicate the high precision and smooth elevator deflection of the proposed output feedback base partial IGC law. | Xuejiao Sun Rui Zhou Delong Hou | 2016 | Journal of Systems Engineering and Electronics2016，27，6： | 0 |
| 12 | Integrated'omics analysis for the gut microbiota response to moxibustion in a rat model of chronic fatigue syndrome显示文摘OBJECTIVE:To observe the efficacy of moxibustion in the treatment of chronic fatigue syndrome(CFS)and explore the effects on gut microbiota and metabolic profiles.METHODS:Forty-eight male Sprague-Dawley rats were randomly assigned to control group(Con),CFS model group(Mod,established by multiple chronic stress for 35 d),MoxA group(CFS model with moxibustion Shenque(CV8)and Guanyuan(CV4),10 min/d,28 d)and MoxB group(CFS model with moxibustion Zusanli(ST36),10 min/d,28 d).Open-field test(OFT)and Morris-water-maze test(MWMT)were determined for assessment the CFS model and the therapeutic effects of moxibustion.16S rRNA gene sequencing analysis based gut microbiota integrated untargeted liquid chromatograph-mass spectrometer(LC-MS)based fecal metabolomics were executed,as well as Spearman correlation analysis,was utilized to uncover the functional relevance between the potential metabolites and gut microbiota.RESULTS:The results of our behavioral tests showed that moxibustion improved the performance of CFS rats in the OFT and the MWMT.Microbiome profiling analysis revealed that the gut microbiomes of CFS rats were less diverse with altered composition,including increases in pro-inflammatory species(such as Proteobacteria)and decreases in anti-inflammatory species(such as Bacteroides,Lactobacillus,Ruminococcus,and Prevotella).Moxibustion partially normalized these changes in the gut microbiota.Furthermore,CFS was associated with metabolic disorders,which were effectively ameliorated by moxibustion.This was demonstrated by the normalization of 33 microbiota-related metabolites,including mannose(P=0.001),aspartic acid(P=0.009),alanine(P=0.007),serine(P=0.000),threonine(P=0.027),methionine(P=0.023),5-hydroxytryptamine(P=0.008),alpha-linolenic acid(P=0.003),eicosapentaenoic acid(P=0.006),hypoxanthine(P=0.000),vitamin B6(P=0.000),cholic acid(P=0.013),and taurocholate(P=0.002).Correlation analysis showed a significant association between the perturbed fecal microbiota and metabolite levels,with a notable negative relationship between LCA and Bacteroides.CONCLUSIONS:In this study,we demonstrated that moxibustion has an antifatigue-like effect.The results from the 16S rRNA gene sequencing and metabolomics analysis suggest that the therapeutic effects of moxibustion on CFS are related to the regulation of gut microorganisms and their metabolites.The increase in Bacteroides and decrease in LCA may be key targets for the moxibustion treatment of CFS. | LI Chaoran YANG Yan FENG Chuwen LI Heng QU Yuanyuan WANG Yulin WANG Delong WANG Qingyong GUO Jing SHI Tianyu SUN Xiaowei WANG Xue HOU Yunlong SUN Zhongren YANG Tiansong | 2023 | Journal of Traditional Chinese Medicine2023，43，6： | 0 |
| 13 | A comparative study of data-driven battery capacity estimation based on partial charging curves显示文摘With its generality and practicality, the combination of partial charging curves and machine learning(ML) for battery capacity estimation has attracted widespread attention. However, a clear classification,fair comparison, and performance rationalization of these methods are lacking, due to the scattered existing studies. To address these issues, we develop 20 capacity estimation methods from three perspectives:charging sequence construction, input forms, and ML models. 22,582 charging curves are generated from 44 cells with different battery chemistry and operating conditions to validate the performance. Through comprehensive and unbiased comparison, the long short-term memory(LSTM) based neural network exhibits the best accuracy and robustness. Across all 6503 tested samples, the mean absolute percentage error(MAPE) for capacity estimation using LSTM is 0.61%, with a maximum error of only 3.94%. Even with the addition of 3 m V voltage noise or the extension of sampling intervals to 60 s, the average MAPE remains below 2%. Furthermore, the charging sequences are provided with physical explanations related to battery degradation to enhance confidence in their application. Recommendations for using other competitive methods are also presented. This work provides valuable insights and guidance for estimating battery capacity based on partial charging curves. | Chuanping Lin Jun Xu Delong Jiang Jiayang Hou Ying Liang Xianggong Zhang Enhu Li Xuesong Mei | 2024 | Journal of Energy Chemistry2024，88，1： | 0 |
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